I'm no expert but that is kind of my read as well.
Long time ago I used Coles because they had a particularly good USA flat fee import/export/delivery package & were amenable to small business. Other brokers had different value levels, fee structure & types of businesses they support, so its kind of a shop around thing. But Coles only deal with businesses (read GST# & tax filing, not just a name). They don't deal with individuals, which I think is the majority of brokers. Maybe that is what makes Clearit distinct? Just look for any other fees such as warehousing/storage/?? that may be over & above. The benefit may depend on your item(s) as well. If you purchased something normally via the dreaded couriers, part of their total dinger fees is probably equivalent to the $40 once you have factored out transportation, duty, tax, various other emerging fees... Where we get our knickers in a knot is a 10$ value box of duty free air still requires us to pay $40 for them to assess, but that may be no different vs Clearit charge. Now if its a 2000$ order made up of several of distinct components with different tariff classes & rates, 40$ doesn't seem so bad anymore for them to get it right.